Data/hora: 09/06/2024 17:54:42

Biblioteca(s): | Embrapa Agrobiologia.
Data corrente: | 08/05/2018
Data da última atualização: | 08/05/2018
Autoria: | MARQUES, P. R. R.; SERGIO LUIZ RODRIGUES DONATO; SÃO JOSE, A. R.; ROSA, R. C. C.
Afiliação: | PEDRO RICARDO ROCHA MARQUES, IFECT BA; DONATO, S. L. R., IFECT, BA; ABEL REBOUÇAS SÃO JOSEJosé Raul Castro Carriello Rosa, IFECT BA; RAUL CASTRO CARRIELLO ROSA, CNPAB.
Título: | Gas exchange and yield of Prata-type banana plants with fertilizer sources for organic management.
Ano de publicação: | 2018
Fonte/Imprenta: | African Journal of Agricultural Research, v. 13, n. 5, p. 272-280, 2018.
ISSN: | 1991-637X
DOI: | 10.5897/AJAR2017.12896
Idioma: | Inglês
Conteúdo: | The aim of this paper is to evaluate gas exchanges and yield of Prata-type banana plants subjected to fertilizer sources for organic management in soil with improved fertility. Two cultivars (?Dwarf-Prata? and ?BRS Platina?), 5 K2O rates (0, 200, 400, 600, and 800 kg ha-1 year-1) supplied by cattle manure and Naturalplus® rock powder, and 2 evaluation times (8:00 am and 2:00 pm) were arranged in a randomized complete block design with 15 replicates. As for production, a randomized block design with 4 cycles and 3 replicates was used. In fertile soils, gas exchanges are little influenced by fertilization. Fertilization with increasing application rates determines a quadratic variation in stomatal conductance and internal CO2 concentration in ?Dwarf-Prata? and a linear variation for leaf temperature and instantaneous water-use efficiency in ?BRS Platina?. Quantum efficiency of photosynthesis is higher at 8:00 am, whereas at 2:00 pm, for leaf temperature. Photosynthesis and leaf transpiration directly correlate with stomatal conductance, instantaneous water-use efficiency, and leaf temperature, while instantaneous water-use efficiency and photosynthesis inversely associate with transpiration and leaf temperature. Cattle manure and rock powder fertilizations do not increase yield in banana plants grown in soils with improved fertility.
Palavras-Chave: | Physiological variables.
Thesaurus Nal: | Economic productivity; Green manures; Musa; Soil productivity.
Categoria do assunto: | --
Registro original: | Embrapa Agrobiologia (CNPAB)
Exemplares: | CNPAB - (40740-1) - UPC - AP - DD - 2018.00030 -  - 2018.00030 - DIS